MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
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The most complete online medical dictionary: 16,436 terms covering anatomy, physiology, pathologies, diagnostic exams, pharmacology and every clinical specialty.
Designed for 3 kinds of users:
- Patients and family who want to understand a diagnosis, a medical report or instructions from a doctor.
- Students of medicine, nursing, physiotherapy and the health professions, dealing with technical terminology.
- Doctors, pharmacists and healthcare workers who need a quick and reliable reference.
Definitions are written in clear, accessible language while keeping the rigor required for professional use. Each term has a dedicated URL, instant autocomplete search, and can be shared on WhatsApp, Facebook, X and via email with one click.
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Disclaimer: the content is for informational and educational purposes only and does not replace medical advice. If you have doubts about your health, always consult a qualified professional. In case of emergency call your local emergency number (911 in the US, 112 in the EU).
Carcinogen
A substance or agent that causes cancer. Related terms include the adjective 'carcinogenic' and the nouns 'carcinogenesis' and 'carcinogenicity.' One of the best-known carcinogens is ionizing radiation. The International Agency for…
Read the definitionRandom terms
Show more- Q fever A vaccine against Q fever, an illness first recognized in Australia in the 1930's that affects people dealing…
- Argon laser A laser with ionized argon as the active medium. Argon lasers are used for photocoagulation in ophthalmology
- Stickler syndrome, type I See: Stickler syndrome
- EEG Electroencephalogram, e technique for studying the electrical current within the brain. Electrodes are…
- HTR1A A gene on chromosome 5 that encodes a type of receptor for serotonin. See: 5-HT1A
- Knee The knee is a joint which has three parts. The thigh bone (the femur) meets the large shin bone (the tibia)…
- Difficult urination See: Dysuria
- Sac, egg See: Egg sac
- Malnutrition-related diabetes At one time, a distinct type of diabetes mellitus, often associated with the tropics and so also called…
- Schmorl's node An upward and downward protrusion (pushing into) of a spinal disk's soft tissue into the bony tissue of the…
- Ball-and-socket joint A ball-and-socket joint is one in which the round end of a bone fits into the cavity of another bone. The hip…
- Naturopathic Pertaining to naturopathy